title: Response to a letter to the editor entitled "low serum B12 level does not mean vit. B12 deficiency-problems related to the diagnosis of vitamin B12 deficiency".
authors.affiliation: Department of Ophthalmology .
authors.forename: Veysi
authors.initials: V
authors.lastname: Öner
authors.forename: Kemal
authors.initials: K
authors.lastname: Türkyılmaz
authors.forename: Ayşegül Küçükali
authors.initials: AK
authors.lastname: Türkyılmaz
authors.forename: Aynur
authors.initials: A
authors.lastname: Kırbaş
authors.forename: Serkan
authors.initials: S
authors.lastname: Kırbaş
authors.forename: Berrak
authors.initials: B
authors.lastname: Şekeryapan
mesh_terms: D005260:Female; D006801:Humans; D008297:Male; D009412:Nerve Fibers / Q000473:pathology*; D009901:Optic Nerve Diseases / Q000473:pathology*; D012160:Retina / Q000473:pathology*; D012162:Retinal Degeneration / Q000473:pathology*; D041623:Tomography, Optical Coherence / Q000379:methods*; D014806:Vitamin B 12 Deficiency / Q000473:pathology*